公开(公告)号：US20120251130A1

公开(公告)日：2012-10-04

申请号：US13493849

申请日：2012-06-11

申请人： Xueyan Zheng ,  Jianying Zhou ,  Vincent Bu ,  Daniel Mahgerefteh

发明人： Xueyan Zheng ,  Jianying Zhou ,  Vincent Bu ,  Daniel Mahgerefteh

IPC分类号： H04B10/04

CPC分类号： H01S5/0427 ,  H01S5/02284 ,  H01S5/06837 ,  H01S5/0687

摘要： Thermal chirp compensation in a chirp managed laser. In one example embodiment, a laser package including a laser and an optical spectrum reshaper configured to convert frequency modulated optical signals from the laser into an amplitude modulated optical signals is provided. A thermal chirp compensation device is in communication with the laser package and a laser driver. The thermal chirp compensation device includes means for generating bias condition and temperature specific thermal chirp compensation signals that each corresponds to a predetermined level of thermal chirp that is induced in the laser by operating the laser at a particular bias condition and temperature.

摘要翻译： 啁啾管理激光器中的热啁啾补偿。 在一个示例性实施例中，提供了包括激光器和被配置成将来自激光器的调频光信号转换成幅度调制光信号的光谱整形器的激光器封装。 热啁啾补偿装置与激光器封装和激光驱动器通信。 热啁啾补偿装置包括用于产生偏置条件和温度特定热啁啾补偿信号的装置，每个对应于通过在特定偏压条件和温度下操作激光而在激光器中感应的预定水平的热啁啾。

公开(公告)号：US20100329666A1

公开(公告)日：2010-12-30

申请号：US12495460

申请日：2009-06-30

申请人： Xueyan Zheng ,  Jianying Zhou ,  Vincent Bu ,  Daniel Mahgerefteh

发明人： Xueyan Zheng ,  Jianying Zhou ,  Vincent Bu ,  Daniel Mahgerefteh

IPC分类号： H04B10/00

CPC分类号： H01S5/0427 ,  H01S5/02284 ,  H01S5/06837 ,  H01S5/0687

摘要： Thermal chirp compensation in a chirp managed laser. In one example embodiment, a method for thermal chirp compensation in a chirp managed laser (CML) includes several acts. First, a first bias condition and temperature is selected. Next, a first thermal chirp compensation signal is generated. Then, the laser is driven by biasing a first input drive signal with the first thermal chirp compensation signal. Next, a second bias condition and temperature is selected. Then, a second thermal chirp compensation signal is generated. Finally, the laser is driven by biasing a second input drive signal with the second thermal chirp compensation signal.

摘要翻译： 啁啾管理激光器中的热啁啾补偿。 在一个示例性实施例中，在线性调频管理激光器（CML）中用于热啁啾补偿的方法包括若干动作。 首先，选择第一偏置条件和温度。 接下来，产生第一热啁啾补偿信号。 然后，通过利用第一热啁啾补偿信号偏置第一输入驱动信号来驱动激光器。 接下来，选择第二偏置条件和温度。 然后，产生第二热啁啾补偿信号。 最后，通过利用第二热啁啾补偿信号偏置第二输入驱动信号来驱动激光器。

公开(公告)号：US08532153B2

公开(公告)日：2013-09-10

申请号：US13493849

申请日：2012-06-11

申请人： Xueyan Zheng ,  Jianying Zhou ,  Vincent Bu ,  Daniel Mahgerefteh

发明人： Xueyan Zheng ,  Jianying Zhou ,  Vincent Bu ,  Daniel Mahgerefteh

IPC分类号： H01S3/00 ,  H01S3/04

CPC分类号： H01S5/0427 ,  H01S5/02284 ,  H01S5/06837 ,  H01S5/0687

摘要： Thermal chirp compensation in a chirp managed laser. In one example embodiment, a laser package including a laser and an optical spectrum reshaper configured to convert frequency modulated optical signals from the laser into an amplitude modulated optical signals is provided. A thermal chirp compensation device is in communication with the laser package and a laser driver. The thermal chirp compensation device includes means for generating bias condition and temperature specific thermal chirp compensation signals that each corresponds to a predetermined level of thermal chirp that is induced in the laser by operating the laser at a particular bias condition and temperature.

摘要翻译： 啁啾管理激光器中的热啁啾补偿。 在一个示例性实施例中，提供了包括激光器和被配置成将来自激光器的调频光信号转换成幅度调制光信号的光谱整形器的激光器封装。 热啁啾补偿装置与激光器封装和激光驱动器通信。 热啁啾补偿装置包括用于产生偏置条件和温度特定热啁啾补偿信号的装置，每个对应于通过在特定偏压条件和温度下操作激光而在激光器中感应的预定水平的热啁啾。

公开(公告)号：US08199785B2

公开(公告)日：2012-06-12

申请号：US12495460

申请日：2009-06-30

申请人： Xueyan Zheng ,  Jianying Zhou ,  Vincent Bu ,  Daniel Mahgerefteh

发明人： Xueyan Zheng ,  Jianying Zhou ,  Vincent Bu ,  Daniel Mahgerefteh

IPC分类号： H01S3/00 ,  H01S3/04 ,  H04B10/12

CPC分类号： H01S5/0427 ,  H01S5/02284 ,  H01S5/06837 ,  H01S5/0687

摘要： Thermal chirp compensation in a chirp managed laser. In one example embodiment, a method for thermal chirp compensation in a chirp managed laser (CML) includes several acts. First, a first bias condition and temperature is selected. Next, a first thermal chirp compensation signal is generated. Then, the laser is driven by biasing a first input drive signal with the first thermal chirp compensation signal. Next, a second bias condition and temperature is selected. Then, a second thermal chirp compensation signal is generated. Finally, the laser is driven by biasing a second input drive signal with the second thermal chirp compensation signal.

摘要翻译： 啁啾管理激光器中的热啁啾补偿。 在一个示例性实施例中，在线性调频管理激光器（CML）中用于热啁啾补偿的方法包括若干动作。 首先，选择第一偏置条件和温度。 接下来，产生第一热啁啾补偿信号。 然后，通过利用第一热啁啾补偿信号偏置第一输入驱动信号来驱动激光器。 接下来，选择第二偏置条件和温度。 然后，产生第二热啁啾补偿信号。 最后，通过利用第二热啁啾补偿信号偏置第二输入驱动信号来驱动激光器。

公开(公告)号：US08027593B2

公开(公告)日：2011-09-27

申请号：US12028678

申请日：2008-02-08

申请人： Jianying Zhou ,  Xueyan Zheng ,  Kevin J. McCallion ,  Daniel Mahgerefteh ,  Hongmin Chen ,  Guoxi Sun ,  Parviz Tayebati

发明人： Jianying Zhou ,  Xueyan Zheng ,  Kevin J. McCallion ,  Daniel Mahgerefteh ,  Hongmin Chen ,  Guoxi Sun ,  Parviz Tayebati

IPC分类号： H04B10/12

CPC分类号： H04B10/504 ,  H04B10/58

摘要： The frequency chirp modulation response of a directly modulated laser is described using a small signal model that depends on slow chirp amplitude s and slow chirp time constant τs. The small signal model can be used to derive an inverse response for designing slow chirp compensation means. Slow chirp compensation means include electrical compensation, optical compensation, or both. Slow chirp electrical compensation can be implemented with an LR filter or other RF circuit coupled to a direct modulation source (e.g., a laser driver) and the directly modulated laser. Slow chirp optical compensation can be implemented with an optical spectrum reshaper having a rounded top and relatively large slope (e.g., 1.5-3 dB/GHz). The inverse response can be designed to under-compensate, to produce a flat response, or to over-compensate.

摘要翻译： 使用取决于慢啁啾振幅s和慢啁啾时间常数τs的小信号模型来描述直接调制激光器的频率啁啾调制响应。 小信号模型可用于导出用于设计慢啁啾补偿装置的反向响应。 慢啁啾补偿装置包括电补偿，光学补偿或两者。 可以使用耦合到直接调制源（例如，激光驱动器）和直接调制的激光器的LR滤波器或其它RF电路来实现慢啁啾电补偿。 可以用具有圆顶和较大斜率（例如，1.5-3dB / GHz）的光谱整形器实现慢啁啾光学补偿。 反向响应可以设计为欠补偿，产生平坦响应或过度补偿。

公开(公告)号：US20080193144A1

公开(公告)日：2008-08-14

申请号：US12028678

申请日：2008-02-08

申请人： Jianying Zhou ,  Xueyan Zheng ,  Kevin J. McCallion ,  Daniel Mahgerefteh ,  Hongmin Chen ,  Guoxi Sun ,  Parviz Tayebati

发明人： Jianying Zhou ,  Xueyan Zheng ,  Kevin J. McCallion ,  Daniel Mahgerefteh ,  Hongmin Chen ,  Guoxi Sun ,  Parviz Tayebati

IPC分类号： H04B10/04

CPC分类号： H04B10/504 ,  H04B10/58

摘要： The frequency chirp modulation response of a directly modulated laser is described using a small signal model that depends on slow chirp amplitude s and slow chirp time constant τs. The small signal model can be used to derive an inverse response for designing slow chirp compensation means. Slow chirp compensation means include electrical compensation, optical compensation, or both. Slow chirp electrical compensation can be implemented with an LR filter or other RF circuit coupled to a direct modulation source (e.g., a laser driver) and the directly modulated laser. Slow chirp optical compensation can be implemented with an optical spectrum reshaper having a rounded top and relatively large slope (e.g., 1.5-3 dB/GHz). The inverse response can be designed to under-compensate, to produce a flat response, or to over-compensate.

摘要翻译： 使用取决于慢啁啾振幅s和慢啁啾时间常数τ的小信号模型来描述直接调制激光器的频率啁啾调制响应。 小信号模型可用于导出用于设计慢啁啾补偿装置的反向响应。 慢啁啾补偿装置包括电补偿，光学补偿或两者。 可以使用耦合到直接调制源（例如，激光驱动器）和直接调制的激光器的LR滤波器或其它RF电路来实现慢啁啾电补偿。 可以用具有圆顶和较大斜率（例如，1.5-3dB / GHz）的光谱整形器实现慢啁啾光学补偿。 反向响应可以设计为欠补偿，产生平坦响应或过度补偿。

公开(公告)号：US20070147847A1

公开(公告)日：2007-06-28

申请号：US11447662

申请日：2006-06-06

申请人： Xueyan Zheng ,  Yasuhiro Matsui ,  Daniel Mahgerefteh ,  Parviz Tayebati

发明人： Xueyan Zheng ,  Yasuhiro Matsui ,  Daniel Mahgerefteh ,  Parviz Tayebati

IPC分类号： H04B10/00

CPC分类号： H04B10/675 ,  H04B10/25137

摘要： A method for transmitting a signal and a fiber optic system comprising: a frequency modulated source; an optical transmission fiber positioned to receive the output of the frequency modulated source; an optical filter positioned to receive the output of the optical transmission fiber; and an optical receiver positioned to receive the output of the optical filter; characterized in that: an optical spectrum reshaper is positioned between the frequency modulated source and the optical transmission fiber; and wherein the optical filter is a narrow band pass filter relative to the bit rate of the transmitted signal; and further wherein the frequency excursion of the frequency modulated source is between 20% and 120% of the bit rate frequency.

摘要翻译： 一种用于发送信号和光纤系统的方法，包括：频率调制源; 定位成接收频率调制源的输出的光传输光纤; 定位成接收光传输光纤的输出的光学滤波器; 以及定位成接收所述滤光器的输出的光接收器; 其特征在于：光谱调制器位于调频源和光传输光纤之间; 并且其中所述滤光器是相对于所发射信号的比特率的窄带通滤波器; 并且其中所述频率调制源的频率偏移在所述比特率频率的20％至120％之间。

公开(公告)号：US08160455B2

公开(公告)日：2012-04-17

申请号：US12566471

申请日：2009-09-24

申请人： Daniel Mahgerefteh ,  Thelinh Nguyen ,  Xueyan Zheng ,  Sunil Priyadarshi

发明人： Daniel Mahgerefteh ,  Thelinh Nguyen ,  Xueyan Zheng ,  Sunil Priyadarshi

IPC分类号： H04B10/04

CPC分类号： H04B10/25137 ,  H04B10/504

摘要： An optical transmitter is disclosed wherein a signal processor receives a data stream and outputs a drive signal for a laser, where the drive signal encodes each bit of the data stream according to the values of adjacent bits effective to compensate for spreading of bits within the fiber. The output of the laser is input to an optical spectrum reshaper that outputs a signal having an enhanced extinction ratio.

摘要翻译： 公开了一种光发射机，其中信号处理器接收数据流并输出用于激光器的驱动信号，其中驱动信号根据有效补偿光纤内的比特扩展的相邻比特数据对数据流的每个比特进行编码 。 激光器的输出被输入到输出具有增强消光比的信号的光谱整形器。

公开(公告)号：US20080193143A1

公开(公告)日：2008-08-14

申请号：US11894477

申请日：2007-08-21

申请人： Daniel Mahgerefteh ,  Yasuhiro Matsui ,  Xueyan Zheng ,  Bart Johnson ,  Duncan JW Walker ,  Parviz Tayebati

发明人： Daniel Mahgerefteh ,  Yasuhiro Matsui ,  Xueyan Zheng ,  Bart Johnson ,  Duncan JW Walker ,  Parviz Tayebati

IPC分类号： H04B10/04

CPC分类号： H04B10/505 ,  H04B10/25137 ,  H04B10/504

摘要： An optical transmitter comprising: an optical source modulated with an input digital data signal so as to generate a first, frequency-modulated digital signal; and an amplitude modulator, modulated with the logical inverse of the input digital data signal, for receiving the first, frequency-modulated signal and generating a second, amplitude-modulated and frequency-modulated digital signal; wherein the optical source and the amplitude modulator are each configured so as to produce positive transient chirp. A method for transmitting a signal, the method comprising: generating a first, frequency-modulated digital signal by modulating an optical source with an input digital data signal; and providing a second, amplitude-modulated and frequency-modulated digital signal by passing the first, frequency-modulated digital signal through an amplitude modulator while modulating the amplitude modulator with the logical inverse of the input digital data signal; wherein the optical source and the amplitude modulator are each configured so as to produce positive transient chirp.

摘要翻译： 一种光发射机，包括：用输入数字数据信号调制的光源，以产生第一调频数字信号; 以及用输入数字数据信号的逻辑反相调制的幅度调制器，用于接收第一频率调制信号并产生第二幅度调制和调频数字信号; 其中光源和幅度调制器各自被配置为产生正瞬态啁啾。 一种用于发送信号的方法，所述方法包括：通过用输入数字数据信号调制光源来产生第一调频数字信号; 以及通过使所述第一调频数字信号通过幅度调制器，同时用所输入的数字数据信号的逻辑反相调制所述振幅调制器来提供第二幅度调制和调频数字信号; 其中光源和幅度调制器各自被配置为产生正瞬态啁啾。

公开(公告)号：US20050111852A1

公开(公告)日：2005-05-26

申请号：US10933081

申请日：2004-09-02

申请人： Daniel Mahgerefteh ,  Roeland Nuyts ,  Yasuhiro Matsui ,  Parviz Tayebati ,  Bart Johnson ,  Duncan Walker ,  Xueyan Zheng

发明人： Daniel Mahgerefteh ,  Roeland Nuyts ,  Yasuhiro Matsui ,  Parviz Tayebati ,  Bart Johnson ,  Duncan Walker ,  Xueyan Zheng

IPC分类号： G02B5/28 ,  G02B6/34 ,  H04B10/155 ,  H04B10/18 ,  H04B10/04

CPC分类号： H04B10/504 ,  G02B5/281 ,  G02B6/29358 ,  G02B6/29362 ,  G02B6/29394 ,  G02B6/29398 ,  H04B10/25133 ,  H04B10/58

摘要： A fiber optic transmitter comprising a digital driver adapted to adjust the crossing point of a digital base signal, an optical source adapted to receive the digital base signal and produce a frequency modulated optical signal, and an optical spectrum reshaper adapted to convert the frequency modulated optical signal to an amplitude modulated optical signal. A method for transmitting a signal, comprising: adjusting the crossing point of a digital base signal; providing the adjusted signal to an optical source to produce a frequency modulated optical signal; and providing the frequency modulated optical signal to an optical spectrum reshaper to convert the frequency modulated optical signal to an amplitude modulated optical signal.

摘要翻译： 一种光纤发射器，包括适于调节数字基本信号的交叉点的数字驱动器，适于接收数字基本信号并产生调频光信号的光源，以及适于将频率调制光 信号到幅度调制光信号。 一种用于发送信号的方法，包括：调整数字基本信号的交叉点; 将经调整的信号提供给光源以产生调频光信号; 并将频率调制的光信号提供给光谱整形器，以将频率调制的光信号转换成幅度调制的光信号。